Catalog / sozialkompendium.org
65

SEO audit for sozialkompendium.org

Jigsaw Puzzle History & Art - Vintage puzzles, makers, collecting, preservation, and puzzle culture.

otherWordPress

Health 65/100 (fair) · 50 pages crawled · generated 2026-08-26

Download Markdown report (feed to ChatGPT / Claude / Cursor)

Vintage puzzles, makers, collecting, preservation, and puzzle culture.

50
pages crawled
50
indexable pages
0
errors
167
warnings
467
notices
0
orphan pages
0
broken links
Category breakdown
CategoryScoreErrorsWarningsNotices
Agent Readiness 70 0 50 2
Performance 70 0 50 200
Meta Description 82 0 30 3
Duplicate 89 0 18 2
Titles 90 0 17 0
Structured Data 99 0 2 50
Cache 100 0 0 50
Content 100 0 0 50
Images 100 0 0 21
Security 100 0 0 50
Sitemap 100 0 0 3
Social 100 0 0 35
URL 100 0 0 1
Findings

Warnings (7 rules)

warning Control has no accessible name

Rule agent.control_no_name · Agent Readiness · 50 occurrence(s)

warning Near-duplicate page content

Rule duplicate.near · Duplicate · 14 occurrence(s)

warning Duplicate <title> across pages

Rule duplicate.title · Duplicate · 4 occurrence(s)

warning Missing meta description

Rule meta_desc.missing · Meta Description · 30 occurrence(s)

warning Render-blocking script in <head> (no defer/async)

Rule perf.render_blocking · Performance · 50 occurrence(s)

warning BreadcrumbList present but structurally incomplete

Rule schema.breadcrumb_incomplete · Structured Data · 2 occurrence(s)

  • https://sozialkompendium.org/ — a BreadcrumbList is present but structurally incomplete — missing required itemListElement. Give itemListElement at least 2 ListItems, each with a sequential integer position and a name, and an item URL on every entry except the last.
  • https://sozialkompendium.org/page/2/ — a BreadcrumbList is present but structurally incomplete — missing required itemListElement. Give itemListElement at least 2 ListItems, each with a sequential integer position and a name, and an item URL on every entry except the last.

warning Title likely truncated in SERP (too wide)

Rule title.too_long · Titles · 17 occurrence(s)

Notices (18 rules)

notice Heading levels skip a level

Rule agent.heading_skip · Agent Readiness · 1 occurrence(s)

notice No llms.txt for AI agents

Rule agent.llms_txt_missing · Agent Readiness · 1 occurrence(s)

notice Page served uncached (no-store/private or CDN bypass)

Rule cache.not_cacheable · Cache · 50 occurrence(s)

notice Main text is hard to read (low Flesch Reading Ease)

Rule content.readability_poor · Content · 50 occurrence(s)

  • https://sozialkompendium.org/ — this page reads as very difficult (Flesch Reading Ease -3, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/about/ — this page reads as very difficult (Flesch Reading Ease -8, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/art-design/art-of-puzzle-design/ — this page reads as very difficult (Flesch Reading Ease 15, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/author/autor/ — this page reads as very difficult (Flesch Reading Ease -7, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/author/autor/page/2/ — this page reads as very difficult (Flesch Reading Ease -7, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/category/art-design/ — this page reads as very difficult (Flesch Reading Ease -55, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/category/collecting/ — this page reads as very difficult (Flesch Reading Ease -10, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/collecting/building-a-puzzle-collection/ — this page reads as very difficult (Flesch Reading Ease 27, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/collecting/from-game-to-gallery-how-vintage-puzzle-boxes-became-collectible-design-objects/ — this page reads as very difficult (Flesch Reading Ease 15, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/collecting/how-online-jigsaw-puzzles-continue-tradition-classic-collecting/ — this page reads as very difficult (Flesch Reading Ease 9, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/collecting/puzzle-box-artwork-jigsaw-collecting-history/ — this page reads as very difficult (Flesch Reading Ease 15, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/collecting/valuing-vintage-puzzles/ — this page reads as very difficult (Flesch Reading Ease 22, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/collecting/vintage-identification-dating/ — this page reads as very difficult (Flesch Reading Ease 28, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/conservation/preserving-restoring-puzzles/ — this page reads as very difficult (Flesch Reading Ease 22, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/contact/ — this page reads as very difficult (Flesch Reading Ease -29, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/contemporary-scene/modern-puzzle-movements/ — this page reads as very difficult (Flesch Reading Ease 18, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/cultural-context/puzzles-and-culture/ — this page reads as very difficult (Flesch Reading Ease 6, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/editorial-policy/ — this page reads as very difficult (Flesch Reading Ease -1, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/history/history-jigsaw-puzzles/ — this page reads as very difficult (Flesch Reading Ease 15, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/history/preserving-vintage-jigsaw-puzzles-history-and-care/ — this page reads as very difficult (Flesch Reading Ease 22, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/makers-profiles/notable-puzzle-makers/ — this page reads as very difficult (Flesch Reading Ease 22, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/marketplaces-practical/buy-sell-puzzles/ — this page reads as very difficult (Flesch Reading Ease 30, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/page/2/ — this page reads as very difficult (Flesch Reading Ease 3, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/preservation/preserving-vintage-jigsaw-puzzles-care-restoration-storage/ — this page reads as very difficult (Flesch Reading Ease 30, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sozialkompendium.org/tag/art-puzzles/ — this page reads as very difficult (Flesch Reading Ease -57, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.

notice Duplicate meta description across pages

Rule duplicate.meta_desc · Duplicate · 2 occurrence(s)

notice Image alt text is keyword-stuffed (repetition / low variety)

Rule images.alt_stuffed · Images · 3 occurrence(s)

notice Image alt text is very long (possible keyword stuffing)

Rule images.alt_too_long · Images · 15 occurrence(s)

notice Likely hero image lacks fetchpriority=high

Rule images.hero_no_fetchpriority · Performance · 50 occurrence(s)

  • https://sozialkompendium.org/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/about/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/art-design/art-of-puzzle-design/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/author/autor/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/author/autor/page/2/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/category/art-design/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/category/collecting/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/collecting/building-a-puzzle-collection/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/collecting/from-game-to-gallery-how-vintage-puzzle-boxes-became-collectible-design-objects/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/collecting/how-online-jigsaw-puzzles-continue-tradition-classic-collecting/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/collecting/puzzle-box-artwork-jigsaw-collecting-history/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/collecting/valuing-vintage-puzzles/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/collecting/vintage-identification-dating/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/conservation/preserving-restoring-puzzles/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/contact/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/contemporary-scene/modern-puzzle-movements/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/cultural-context/puzzles-and-culture/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/editorial-policy/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/history/history-jigsaw-puzzles/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/history/preserving-vintage-jigsaw-puzzles-history-and-care/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/makers-profiles/notable-puzzle-makers/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/marketplaces-practical/buy-sell-puzzles/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/page/2/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/preservation/preserving-vintage-jigsaw-puzzles-care-restoration-storage/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://sozialkompendium.org/tag/art-puzzles/ — the likely hero/LCP image (logo-2.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.

notice Images without width/height (layout shift / CLS)

Rule images.missing_dimensions · Images · 3 occurrence(s)

notice Meta description too long

Rule meta_desc.too_long · Meta Description · 3 occurrence(s)

notice Missing Open Graph tags

Rule og.missing · Social · 35 occurrence(s)

notice Legacy image format (jpg/png/gif) with no next-gen fallback

Rule perf.images_legacy_format · Performance · 50 occurrence(s)

notice No ETag header (no conditional GET for unchanged pages)

Rule perf.no_etag · Performance · 50 occurrence(s)

notice No Last-Modified header (no conditional GET for unchanged pages)

Rule perf.no_last_modified · Performance · 50 occurrence(s)

  • https://sozialkompendium.org/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/about/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/art-design/art-of-puzzle-design/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/author/autor/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/author/autor/page/2/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/category/art-design/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/category/collecting/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/collecting/building-a-puzzle-collection/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/collecting/from-game-to-gallery-how-vintage-puzzle-boxes-became-collectible-design-objects/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/collecting/how-online-jigsaw-puzzles-continue-tradition-classic-collecting/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/collecting/puzzle-box-artwork-jigsaw-collecting-history/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/collecting/valuing-vintage-puzzles/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/collecting/vintage-identification-dating/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/conservation/preserving-restoring-puzzles/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/contact/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/contemporary-scene/modern-puzzle-movements/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/cultural-context/puzzles-and-culture/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/editorial-policy/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/history/history-jigsaw-puzzles/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/history/preserving-vintage-jigsaw-puzzles-history-and-care/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/makers-profiles/notable-puzzle-makers/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/marketplaces-practical/buy-sell-puzzles/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/page/2/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/preservation/preserving-vintage-jigsaw-puzzles-care-restoration-storage/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://sozialkompendium.org/tag/art-puzzles/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.

notice Deprecated schema type with no Google rich result

Rule schema.deprecated_type · Structured Data · 50 occurrence(s)

notice Missing recommended security headers

Rule security.missing_headers · Security · 50 occurrence(s)

notice Indexable page not listed in sitemap

Rule sitemap.orphan_not_listed · Sitemap · 3 occurrence(s)

notice URL is very long

Rule url.too_long · URL · 1 occurrence(s)

Pages (showing 50 of 50)
URLStatusIndexableWordsIn-links
https://sozialkompendium.org/
Jigsaw Puzzle History & Art - Vintage puzzles, makers, collecting, preservation, and puzzle culture.		 200 yes 832 50
https://sozialkompendium.org/about/
About - Jigsaw Puzzle History & Art		 200 yes 342 50
https://sozialkompendium.org/category/art-design/
Art & Design Archives - Jigsaw Puzzle History & Art		 200 yes 288 50
https://sozialkompendium.org/category/collecting/
Collecting Archives - Jigsaw Puzzle History & Art		 200 yes 530 50
https://sozialkompendium.org/category/conservation/
Conservation Archives - Jigsaw Puzzle History & Art		 200 yes 284 50
https://sozialkompendium.org/category/contemporary-scene/
Contemporary Scene Archives - Jigsaw Puzzle History & Art		 200 yes 287 50
https://sozialkompendium.org/category/cultural-context/
Cultural Context Archives - Jigsaw Puzzle History & Art		 200 yes 300 50
https://sozialkompendium.org/category/design-history/
Design History Archives - Jigsaw Puzzle History & Art		 200 yes 301 50
https://sozialkompendium.org/category/history-and-art-of-jigsaw-puzzles/
History and art of jigsaw puzzles Archives - Jigsaw Puzzle History & Art		 200 yes 293 50
https://sozialkompendium.org/category/history-of-puzzles/
History of Puzzles Archives - Jigsaw Puzzle History & Art		 200 yes 291 50
https://sozialkompendium.org/category/history/
History Archives - Jigsaw Puzzle History & Art		 200 yes 336 50
https://sozialkompendium.org/category/makers-profiles/
Makers & Profiles Archives - Jigsaw Puzzle History & Art		 200 yes 303 50
https://sozialkompendium.org/category/marketplaces-practical/
Marketplaces & Practical Archives - Jigsaw Puzzle History & Art		 200 yes 289 50
https://sozialkompendium.org/category/preservation/
Preservation Archives - Jigsaw Puzzle History & Art		 200 yes 400 50
https://sozialkompendium.org/category/puzzle-history/
Puzzle History Archives - Jigsaw Puzzle History & Art		 200 yes 285 50
https://sozialkompendium.org/category/vintage-puzzles/
Vintage Puzzles Archives - Jigsaw Puzzle History & Art		 200 yes 301 50
https://sozialkompendium.org/collecting/from-game-to-gallery-how-vintage-puzzle-boxes-became-collectible-design-objects/
From Game to Gallery: How Vintage Puzzle Boxes Became Collectible Design Objects - Jigsaw Puzzle History & Art		 200 yes 1307 50
https://sozialkompendium.org/collecting/how-online-jigsaw-puzzles-continue-tradition-classic-collecting/
How Online Jigsaw Puzzles Continue the Tradition of Classic Puzzle Collecting - Jigsaw Puzzle History & Art		 200 yes 1331 50
https://sozialkompendium.org/collecting/puzzle-box-artwork-jigsaw-collecting-history/
How Puzzle Box Artwork Shaped the History of Jigsaw Collecting - Jigsaw Puzzle History & Art		 200 yes 1329 50
https://sozialkompendium.org/contact/
Contact - Jigsaw Puzzle History & Art		 200 yes 286 50
https://sozialkompendium.org/editorial-policy/
Editorial Policy - Jigsaw Puzzle History & Art		 200 yes 368 50
https://sozialkompendium.org/history/preserving-vintage-jigsaw-puzzles-history-and-care/
Preserving Vintage Jigsaw Puzzles: History, Notable Makers, and Practical Care - Jigsaw Puzzle History & Art		 200 yes 1300 50
https://sozialkompendium.org/preservation/preserving-vintage-jigsaw-puzzles-care-restoration-storage/
Preserving Vintage Jigsaw Puzzles: Practical Care, Restoration, and Storage Tips - Jigsaw Puzzle History & Art		 200 yes 1400 50
https://sozialkompendium.org/art-design/art-of-puzzle-design/
The Art of Puzzle Design: Artists, Illustration Styles, and Cut Patterns - Jigsaw Puzzle History & Art		 200 yes 1298 49
https://sozialkompendium.org/collecting/building-a-puzzle-collection/
Building a Collection: Cataloguing, Storage, and Display Strategies - Jigsaw Puzzle History & Art		 200 yes 1080 49
https://sozialkompendium.org/contemporary-scene/modern-puzzle-movements/
Modern Movements: Independent Makers, Art Puzzles, and Kickstarter Projects - Jigsaw Puzzle History & Art		 200 yes 1274 49
https://sozialkompendium.org/cultural-context/puzzles-and-culture/
Puzzles and Culture: How Jigsaws Shaped Leisure, Education, and Therapy - Jigsaw Puzzle History & Art		 200 yes 1253 49
https://sozialkompendium.org/marketplaces-practical/buy-sell-puzzles/
Where to Buy and Sell Jigsaw Puzzles: Auction Tips, Marketplaces, and Ethical Buying - Jigsaw Puzzle History & Art		 200 yes 1290 49
https://sozialkompendium.org/conservation/preserving-restoring-puzzles/
Preserving and Restoring Jigsaw Puzzles: Best Practices for Collectors - Jigsaw Puzzle History & Art		 200 yes 1277 13
https://sozialkompendium.org/collecting/vintage-identification-dating/
Vintage Jigsaw Puzzles: A Collector’s Guide to Identification and Dating - Jigsaw Puzzle History & Art		 200 yes 1247 11
https://sozialkompendium.org/makers-profiles/notable-puzzle-makers/
Notable Makers and Studios in Jigsaw Puzzle History - Jigsaw Puzzle History & Art		 200 yes 1283 10
https://sozialkompendium.org/collecting/valuing-vintage-puzzles/
Valuing Vintage Puzzles: Market Trends, Rarity, and Condition - Jigsaw Puzzle History & Art		 200 yes 1241 10
https://sozialkompendium.org/history/history-jigsaw-puzzles/
A Brief History of Jigsaw Puzzles: From Hand-Cut Pastimes to Mass Production - Jigsaw Puzzle History & Art		 200 yes 1212 8
https://sozialkompendium.org/page/2/
Jigsaw Puzzle History & Art - Page 2 of 2 - Vintage puzzles, makers, collecting, preservation, and puzzle culture.		 200 yes 360 1
https://sozialkompendium.org/tag/collecting/
collecting Archives - Jigsaw Puzzle History & Art		 200 yes 664 2
https://sozialkompendium.org/tag/art-puzzles/
art puzzles Archives - Jigsaw Puzzle History & Art		 200 yes 287 1
https://sozialkompendium.org/tag/auctions/
auctions Archives - Jigsaw Puzzle History & Art		 200 yes 285 1
https://sozialkompendium.org/tag/box-art/
box art Archives - Jigsaw Puzzle History & Art		 200 yes 285 1
https://sozialkompendium.org/tag/buy-vintage-jigsaw-puzzles/
buy vintage jigsaw puzzles Archives - Jigsaw Puzzle History & Art		 200 yes 291 1
https://sozialkompendium.org/tag/cataloguing/
cataloguing Archives - Jigsaw Puzzle History & Art		 200 yes 283 1
https://sozialkompendium.org/tag/chromolithography/
chromolithography Archives - Jigsaw Puzzle History & Art		 200 yes 284 1
https://sozialkompendium.org/tag/craftsmanship/
craftsmanship Archives - Jigsaw Puzzle History & Art		 200 yes 299 1
https://sozialkompendium.org/tag/crowdfunding/
crowdfunding Archives - Jigsaw Puzzle History & Art		 200 yes 285 1
https://sozialkompendium.org/author/autor/page/2/
Autor, Author at Jigsaw Puzzle History & Art - Page 2 of 2		 200 yes 471 1
https://sozialkompendium.org/tag/collecting-tips/
collecting tips Archives - Jigsaw Puzzle History & Art		 200 yes 327 1
https://sozialkompendium.org/tag/collectors/
collectors Archives - Jigsaw Puzzle History & Art		 200 yes 281 1
https://sozialkompendium.org/tag/condition/
condition Archives - Jigsaw Puzzle History & Art		 200 yes 288 1
https://sozialkompendium.org/tag/conservation/
conservation Archives - Jigsaw Puzzle History & Art		 200 yes 358 1
https://sozialkompendium.org/tag/collecting/page/2/
collecting Archives - Page 2 of 2 - Jigsaw Puzzle History & Art		 200 yes 357 1
https://sozialkompendium.org/author/autor/
Autor, Author at Jigsaw Puzzle History & Art		 200 yes 662 1

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